Expect, a core component of the Jest testing framework, provides the expect function for writing assertions in your tests. Comparing versions 27.4.0 and 27.3.1 reveals several key updates. The most notable change lies in the dependency updates. Version 27.4.0 features upgrades across a wider range of @jest/* packages, all bumped to version 27.4.0. Specifically, @jest/types, jest-get-type, jest-regex-util, jest-message-util, and jest-matcher-utils are updated. Furthermore, @jest/test-utils as devDependency is upgraded to the same version to 27.4.0. This indicates a concerted effort to synchronize and modernize the Jest ecosystem, potentially bringing performance improvements, bug fixes, or new features within these utility packages. Developers should investigate the changelogs of the updated @jest/* dependencies to understand precisely what enhancements or breaking changes might impact their existing tests.
In contrast, version 27.3.1 uses older versions in the dependency tree of these packages. Also, jest-regex-util used the older 27.0.6 version. While the core functionality of expect likely remains the same, upgrading to 27.4.0 ensures developers are leveraging the latest improvements and benefiting from the most up-to-date Jest infrastructure. The increased unpacked size in the newer version (170047 vs 169347) suggests potential additions of new features. Developers should consider these dependency updates to ensure compatibility and take advantage of potential improvements in their testing workflows.
The are not vulnerabilities for the version 27.4.0 of the package expect
